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Concept

Liaison covalente de coordination

Publications associées (30)

Zn(II) and Cu(II) tetrakis(diarylamine)phthalocyanines as hole-transporting materials for perovskite solar cells

Mohammad Khaja Nazeeruddin, Hiroyuki Kanda, Kasparas Rakstys, Jianxing Xia, Maria Cristina Momblona Rincón, Cansu Igci, Nadja Isabelle Desiree Klipfel

Finding new hole-transporting materials (HTMs) suitable for replacing the state-of-the-art spiro-OMe-TAD is still challenging. In this work, newly synthesized diarylamine-substituted metal phthalocyanines (MPcs, M 1/4 Zn(II) or Cu(II)) functionalized with ...

ELSEVIER SCI LTD2022

Isolation, Characterisation and Reactivity of N-Heterocyclic Diazoolefins

Paul Varava

Examples for applications of nitrous oxide in organic synthesis remain rare up until today. First mayor contributions of our group were published in 2012, when nitrous oxide was successfully captured by N-heterocyclic carbenes. Subsequent studies investiga ...

EPFL2022

Development of Covalent Chitosan-Polyethylenimine Derivatives as Gene Delivery Vehicle: Synthesis, Characterization, and Evaluation

Sandrine Gerber, Céline Marie Anne Journot, Laura Camille Louise Nicolle

There is an increasing interest in cationic polymers as important constituents of non-viral gene delivery vectors. In the present study, we developed a versatile synthetic route for the production of covalent polymeric conjugates consisting of water-solubl ...

2021

Novel inhibitors of kallikrein proteases and uses thereof

Christian Heinis, Alessandro Zorzi, Patrick Andreas Gonschorek

The present invention relates to a cyclic inhibitor of a kallikrein protease comprising or consisting of (I) the peptide (X1 (X2)(X3)R(X4)(X5)(X6)(X7)(X8)(X9)(X10)(X11) (Formula (X)), wherein (X1) is present or absent and, is preferably present, and if pre ...

2021

Structural and analytical identifications of biomolecules by cold ion spectroscopy of non-covalent complexes

Erik Saparbayev

Non-covalent interactions are ubiquitous in nature. The diversity and functionality of these interactions are employed by nature as a universal tool for building the molecular mechanism of life. Although weak, these interactions play a key role in both for ...

EPFL2021

Shape retaining self-healing metal-coordinated hydrogels

Esther Amstad, Raffaele Mezzenga, Alvaro Lino Boris Charlet

Metal-coordinated hydrogels are physical hydrogels entirely crosslinked by complexes between ligand decorated polymers and metal ions. The mechanical properties of these hydrogels strongly depend on the density and dynamics of metal-coordinated interaction ...

2021

Atomic Level Insights of Non-Noble Metal Catalysts for the Oxygen Evolution Reaction

Lichen Bai

The conversion of intermittent renewable energy resources in the form of chemical bond, such as hydrogen production from electrochemical water splitting, is a promising way to satisfy the future global energy demand and address the environmental issues. Th ...

EPFL2021

Copper-Catalyzed Cyanoalkylative Aziridination of N-Sulfonyl Allylamines

Jieping Zhu, Qian Wang, Minh Tu Ha, Weisi Guo

Reaction of N-arylsulfonyl allylamines with alkyl nitriles in the presence of di-tert-butyl peroxide (DTBP) and a catalytic amount of copper salt afforded homologated aziridines in 43-86% yield. A sequence involving addition of the in situ generated cyanom ...

Wiley2020

Accelerated Discovery of Metal-Organic Frameworks (MOFs) For Energy Related Applications

Arunraj Chidambaram

Metal-Organic Frameworks (MOFs) are an emerging class of materials that consist of metal ions which are linked with organic ligands via coordination bonds to form extended networks. MOF structures consists predominantly of open voids which makes them among ...

EPFL2020

Hydrogen Bonding of Ammonia with (H,OH)-Si(001) Revealed by Experimental and Ab Initio Photoelectron Spectroscopy

Alfredo Pasquarello, Oleg Yazyev

Combining experimental and ab initio core-level photoelectron spectroscopy (periodic DFT and quantum chemistry calculations), we elucidated how ammonia molecules bond to the hydroxyls of the (H,OH)-Si(001) model surface at a temperature of 130 K. Indeed, t ...

AMER CHEMICAL SOC2020